1/5w+7=−2 what the number of W

Which expression is equivalent to 2x^2+2x-4/2x^2-4x+2

The school that imani goes to is selling tickets to the annual dance competition. on the first day of the ticket sales the school sold 7 adult tickets and 5 child tickets for a total of $96. the school took in $40 on the second day by seling 3 adult tickets . find the price of an adult ticket and the price of a child ticket. solve by using substitution elimination college prep algebra math heres the 2 equations i came up with 7x+5y=96 and 3x+2y= -40 show all workiv be stuck on this.

Polygon abcde is reflected to produce polygon a′b′c′d′e′. what is the equation for the line of reflection?